import java.util.Scanner;

public class R3 {
    public static void main(String args[]) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextLong()) {
            System.out.println(scanner.nextLong());
        }
    }

    public static long reverse(long x) {
        long result = 0;
        while (x != 0) {
            result = result * 10 + x % 10;
            x = x / 10;
        }
        if (result > Integer.MAX_VALUE || result < Integer.MIN_VALUE) {
            return 0;
        }
        return (int) result;
    }
}
